Peptide bond formation is catalyzed by the enzymatic activity of an RNA molecule

A. true B. false


Answer : A

Biology & Microbiology

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What is the sequence of events in a typical eukaryotic cell cycle?  

A.  G1 to G2 to S to mitosis to cytokinesis B.  G1 to S to G2 to mitosis to cytokinesis C.  G1 to S to G2 to cytokinesis to mitosis D.  G1 to G2 to mitosis to S to cytokinesis E.  S to G1 to G2 to mitosis to cytokinesis

Biology & Microbiology

Glucose dissolves in water because it

a. ionizes. b. is a polysaccharide. c. is a polar and forms many hydrogen bonds with water molecules. d. has a very reactive primary structure. e. is an isotope

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When does a zygote become a multicellular creature?

a. at fertilization b. when cleavage begins c. when organs begin to form d. when the heart begins beating e. at birth

Biology & Microbiology

Why are the proteins being separated on an SDS polyacrylamide gel attracted equally to the positive electrode?

a) they all have the same degree of hydrophobicity b) they carry a relatively uniform negative charge distribution c) they are all the same molecular weight d) they are all the same size e) they carry a relatively uniform positive charge distribution

Biology & Microbiology